A sprinter runs for 6.45 s at 7.44 m/s. How far does she get? A. 0.867 m
B. 13.9 m
C. 1.15 m
D. 48.0 m ​

Distinguish between a transverse wave and a longitudinal wave.

The uniform slender bar rests on a smooth horizon- tal surface when a force f is applied normal to the bar at point a. point a is observed to have an initial acceleration aa of 20 m/s2, and the bar has a corre- sponding angular acceleration of 18 rad /s2. deter- mine the distance b.

In the illustration, which two simple machines are being used to enable the student to reach the door? a. inclined plane and pulley b lever and wheel-and-axle c pulley and lever d wheel-and axle and inclined plane